Emily Lamos narrowly missed out on hitting for the cycle and Grace Fisher allowed just three hits and struck out nine as Riverside downed visiting Lake Catholic on Tuesday, 9-1.
Lamos doubled, tripled, and hit a home run in the first inning to give the Beavers an early 2-0 lead.
Fisher was dominant in the circle as 69 of the 96 pitches she threw went for strikes.
Lake Catholic strung two of its three hits together in the third inning to push across a run but Fisher set the Cougars down in order in five of seven innings played.
Amanda Kolar was 3-for-4 with a triple for the Beavers and Molly Binkiewicz chipped in with a pair of hits. Emma Kovalchuk doubled and Maren Kelly tripled.
Riverside improved to 4-0. The Beavers travel to Brush on Wednesday.